[Taqwus]

Hm, were there? Don't recall that facility; maybe it was added in the expansion pack or a more recent patch.

There was an exploit in which one could theoretically have a disconnected component of systems, each of which had the maximum number of warp links to each other however. Took a bit of work to do, but it was the only way to be espionage-proof even against concerted attack, IIRC. Of course, at that point you couldn't expand, either. Wonder if it was ever fixed.